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Research papers

How does advertising affect loyalty?

Understanding and measuring advertising and buyer loyalty have both been on marketers' agendas for many decades. However, the act of bringing the two agendas together has been limited due to the data requirements associated with doing so...

Catalogue: WM3- Worldwide Multi Media Measurement 2008
Authors: Leslie Wood, Rachel Kennedy, Colin McDonald, Carl Driesener, Gerald J. Goodhardt
June 1, 2008

Research papers

Audience appreciation and audience size

Most television programmes can be classified into two main programme types, Information and Entertainment. Information programmes tend to get smaller audiences but higher appreciation scores than do Entertainment programmes. Between these two main...

Catalogue: ESOMAR Congress 1979: The Challenge Of Eighties
Authors: Patrick Barwise, Andrew S. C. Ehrenberg, Gerald J. Goodhardt
June 15, 1979

Research papers

Evaluating a consumer dial

In this article we show how the effects of many marketing actions can now be evaluated in some detail. The basic question considered is not whether there was any positive effect at all (eg on total sales) but what kind of effect it was (eg extra...

Catalogue: Seminar 1976: The Contribution Of Research To Decision Making Promotions
Authors: Andrew S. C. Ehrenberg, Gerald J. Goodhardt
June 15, 1976

Research papers

Factor analysis

The paper shows how different versions of factor analysis applied to the same data can lead to different results. In contrast, factor analyses of data which differ can lead to the same results. These are two major limitations of the technique. Two...

Catalogue: ESOMAR Congress 1976: Research That Works For Today's Marketing Problems
Authors: Martin Alan Collins, Andrew S. C. Ehrenberg, Gerald J. Goodhardt
June 15, 1976

Research papers

Loyalty reports

In this document we describe the basic structure of buyer behaviour for a certain frequently-bought branded product. The purpose is to illustrate, in terms of a real-life but coded example, the analysis of brand-switching, of heavy buyers, of...

Catalogue: Seminar 1972: Panels
Author: Gerald J. Goodhardt
June 15, 1972

Research papers

An empirical approach to brand-switching

The number of people who buy two particular brands in a given time period does not depend on the brands as such but only on the numbers of people who buy each brand and on a general constant. The constant varies by product-field and by the length of...

Catalogue: Seminar 1968: Operational Research In Marketing
Authors: Gerald J. Goodhardt, Andrew S. C. Ehrenberg
November 1, 1968

Research papers

The duplication of television viewing between and within channels

In the United Kingdom some 85% of homes have a television set capable of receiving at least two different channels. The results to be described in this paper concern the use these viewers make of the choice available to them. There has been much...

Catalogue: ESOMAR Congress 1968
Author: Gerald J. Goodhardt
June 15, 1968

Research papers

Consumer purchasing patterns in successive time-periods

In this paper I want to consider a new way of analysing consumer purchasing data. In brief the method consists of classifying consumers not by the usual demographic characteristics, but in terms of their purchasing behaviour in some previous period....

Catalogue: ESOMAR Congress 1966
Author: Gerald J. Goodhardt
September 1, 1966